	function groupid($field, $value, $fieldinfo) {
            extract(string2array($fieldinfo['setting']));
            $grouplist = getcache('grouplist','member');
            foreach($grouplist as $_key=>$_value) {
                if($_value['groupid'] ==1 || $_value['issystem'] == 1) continue;
                $data[$_key] = $_value['name'];
            }
		return '<input type="hidden" name="info['.$field.']" value="1">'.form::checkbox($data,$value,'name="'.$field.'[]" id="'.$field.'"','','120');
	}
